** Reply to message from Jeff Garzik <jgarzik@mandrakesoft.mandrakesoft.com> on
Thu, 20 Jul 2000 11:39:59 -0500 (CDT)
> > What I want to do is; I have an PCI-card with on-board RAM. I want somehow
> > to tell the kernel that it can use that RAM as if it was any other RAM.
>
> Have you benchmarked accessing system memory versus PCI shared mem?
Yes, the PCI RAM will be very slow compared to normal RAM. I don't think it
will help much. But if you insist, ...
the easiest way is to create another Zone, and modify the zonelist structures
to use that Zone as a backup zone for ZONE_NORMAL. Then, whenever you run out
of normal RAM, it will allocate your PCI RAM.
There's a linux-mm mailing list that might be more useful, if you decide to
pursue this.
-- Timur Tabi - ttabi@interactivesi.com Interactive Silicon - http://www.interactivesi.comWhen replying to a mailing-list message, please don't cc: me, because then I'll just get two copies of the same message.
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